Cording-seal.



W. M. BROOKS.

CORDING SEAL.

APPLICATION FILED MAB..15, 1913.

1,062,880, Patented May 27, 1913.

TNESSES INVENTOR r I Attorney column ruuouluil xi E51. wumnu-rou, 1;. c.

1 UNITED STATES PATENT OFFICE.

wmrnnn MUDGE snooxs, or Essa: ensues, NEW JERSEY, ASSIGNOR '10 zr. BROOKS & (70., OF NEW YORK,- N. Y.-, A CORPORATION OF NEW YORK.

CoRDI'NG-SEAL.

Specification of Letters Patent.

Patented May 27, 191 3.

Application filed March: 15, 1913. Serial No. 754,571.

or its equivalent, termed in common? cord,

interacts with the seal part or seal.

The present invention is more particularly an improvement on the press-fastenable sheet-metal cording seal patented by said Edward J Brooks, October 5, 1897, (United States Letters Patent No. 591,368), and consists in the improved construction hereinafter particularly described and claimed.

The leading object of this invention is to render the press-fastened seal more secure against violation without detection, by additional means for evenly distributing the pressure on bothof two cord ends passing through the seal, and for more tightly and effectively fastening each cord end against bein withdrawn or stripped.

Ot ier objects will be set forth in the general description, which follows.

A sheet of drawings accompanies this specification as part thereof.

Figures 1 and 2 are respectively face and back views of a domed back member; Fig. 3' represents a magnified section therethrough on the line AB; Figs. 4 and 5 are respectively face and back views of a middle piece; Fig. 6 represents a magnified section therethrough on the line C-D and through the other members of the seal in juxtaposition; Figs. 7 and 8 are respectively faceand back views of the face plate of the seal; Fig. 9 represents a magnified section on the line E-F Fig. 10, which is a back view of the seal as completed at the factory; Fig. 11 is a back view of the press-fastened seal; Fig. 12 represents a magnified section on the line GH, Fig. 11; and Fig. 13 is a sectional view of a second species of the improved seal.

marginal seaming flange 7. piece 2' or 2, which is the only part that Like reference characters refer to like parts in all the figures.

The improved cording seal, either of its species, shown as a whole at a and 72-, respectively, may be and prefer'ably is made wholly of tin v (tin plate), and is designed to inseparably. fasten or secure the fastening of t he-t 'wo ends 0 and of, Figs; 11 and 12',

of a sealing cord, especia ly ordinary hemp cord such as is most commonly used for cording seals. In either form, the improved seal is composed of adomed back member, 1 shown detached by Figs. 1 and an in closed middle piece, 2*- or' 2, one form of which is shown detached by Figs. f and 5;

and a faceplate, 3, shown detached by Figs. 7 and 8; said back member and said middle piece being compressible so as" to effectively change their shapes in cross section at the press-fastening operation.

The back member l provided two pairs of threading holes, 4; inwardly pro jecting' guards, 5,. formed by the free ex tremities of the metal cut and inturne'd 'from the several holes 4; a central inwardly projecting teat, 6, formed by indenting the as shown at 6 and a The middle differs in the two species, has in both species a middle portion, 8, substantially U- shaped, the otherwise closed end of which is provided with a central hole, 9, to interact with said teat, 6; a pair of locking portions, 10, adjoining said middle portion, and provided with sharp cord-penetrating spurs, 11, preferably formed by punching through the metal with a small sharp-pointed punch; and a pair of cord-embracing portions, 12 or 12, formed by the extremities of the stripshaped blank. In the second species (Fig. 13) said cord-embracing portions 12 are C- shaped so as to curl around the cord and more tightly hug the same, as compared with the corresponding portions 12 in the The parts are assembled as shown in Fig. 6, and inseparably united by seaming together said flanges 7 and 13 as shown in Fig. 9 or Fig. 13. The seal leaves the factory as aforesaid in the form represented by Fig. 10 and by either of said Figs. 9 and 13. It is applied in customary manner by threading the cord ends 0 d through the respective pairs of the holes 4:. This operation is facilitated by said guards 5 which mask said spurs 11. It is preferably pressfastened by a seal press having a round nosed movable die forming a rounded con cavity, 00, Fig. 12 in the back of the seal, without effacing the indentation 6 which indicates the improved construction, and without deforming the flat face of the seal.

In the press-fastening operation the interaction of the teat 6 and hole 9 insures an equal distribution of the pressure on both sides of said middle portion 8 of the piece 2 or 2, and the symmetrical and efiective distribution of the metal of said middle portion 8 in contact with the two cord ends as shown in Fig. 12. Simultaneously the spurs 11 penetrate the cord ends, a d, and the locking portions 12 or 12 hug the cord ends against the metal of said middle portions 8 and against said spurs 11, and curl around the cord ends more or less according to their length and shape.

It will be obvious that the seaming flanges 7 and 13 may be reversed, and, with the crown flange (13) on the back member 1,

y the face plate 3' need not be of sheet metal;

and other like modifications will suggest themselves to those skilled in the art.

Having thus described said improvement, I claim as my invention, and desire to patent under this specification:

1. An improved press-fastenable cording seal having, in combination, a compressible domed back member provided With threading holes and with an inwardly projecting central teat; an inclosed compressible middle piece having a central hole formed and arranged to interact with said teat, a middle portion in which said hole is located, and locking portions adjoining said middle portion; and a face plate inseparably seamed to said back member.

2. An improved press-fastenable cording seal having, in combination, a compressible domed back member provided with threading holes, inwardly projecting guards at the several holes and an inwardly projecting central teat; an inclosed compressible middle piece having a central hole formed and arranged to interact with said teat, a substantially U-shaped middle portion in which said hole is located, locking portions adjoiningsaid middle portion and provided with sharp cord-penetrating spurs masked in the unpressed seal by said guards, and cord-embracing portions adjoining said locking portions and adapted to hug the cord agalnst said spurs in the press-fastened seal; and a face plate inseparably seamed to said back member; substantially as hereinbefore specified.

WINFRED MUDGE BROOKS. Witnesses:

DONALD LIVINGSTON, GEO. R. FoRD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

